How many keys are there on a standard keyboard?

A __________ helps to move pages up and down.

Computers are not used in schools and offices.

Continuous use of headphones will harm our ears.

Identify this Key

Identify the type of computer?

How many arrow keys are there?

The __________________ key is used to type letters, words and sentences.

We should sit on a chair with back rest and arm rest.

Identify the activity being performed

Identify this picture

When we switch on the computer, the first screen displayed is called the ___________.

The computer monitor should be at eye level.